Table 2 Most frequently reported reactions (Higher Level Terms, HLTs) for selected top reported drugs from the SDG subgroups NSAIDs used in pain therapies, analgesia producing opioids, and other drugs used in pain therapies stratified by age group.

From: Age disparities in adverse reactions of drugs used in pain therapies in Switzerland

Younger adults (18–74 years)

Older adults (75 + years)

HLT

Counts, No. (%)

HLT

Counts, No. (%)

NSAIDs used in pain therapies

 Diclofenac

  Total reactions

1535 (100.0)

Total reactions

595 (100.0)

  Renal failure and impairment

68 (4.4)

Non-site specific gastrointestinal haemorrhages

98 (16.5)

  Non-site specific gastrointestinal haemorrhages

57 (3.7)

Renal failure and impairment

48 (8.1)

  Nausea and vomiting symptoms

51 (3.3)

Gastric ulcers and perforation

37 (6.2)

  Rashes, eruptions and exanthems NEC

48 (3.1)

Anaemias NEC

36 (6.1)

  Allergic conditions NEC

41 (2.7)

Haemorrhages NEC

29 (4.9)

 Ibuprofen

  Total reactions

1607 (100.0)

Total reactions

291 (100.0)

  Renal failure and impairment

77 (4.8)

Non-site specific gastrointestinal haemorrhages

45 (15.5)

  Hepatocellular damage and hepatitis NEC

59 (3.7)

Renal failure and impairment

18 (6.2)

  Rashes, eruptions and exanthems NEC

57 (3.5)

Gastric ulcers and perforation

15 (5.2)

  Neutropenias

51 (3.2)

Anaemias NEC

13 (4.5)

  Non-site specific gastrointestinal haemorrhages

49 (3.0)

Haemorrhages NEC

9 (3.1)

 Mefenamic acid

  Total reactions

830 (100.0)

Total reactions

196 (100.0)

  Renal failure and impairment

43 (5.2)

Non-site specific gastrointestinal haemorrhages

23 (11.7)

  Nausea and vomiting symptoms

42 (5.1)

Renal failure and impairment

18 (9.2)

  Allergic conditions NEC /

  Rashes, eruptions and exanthems NEC

29 (3.5)

29 (3.5)

Rashes, eruptions and exanthems NEC

9 (4.6)

  Diarrhoea (excl infective)

25 (3.0)

Anaemias NEC /

Gastric ulcers and perforation

8 (4.1)

8 (4.1)

  Non-site specific gastrointestinal haemorrhages

22 (2.7)

Nausea and vomiting symptoms

7 (3.6)

 Metamizole

  Total reactions

1485 (100.0)

Total reactions

396 (100.0)

  Neutropenias

245 (16.5)

Neutropenias

64 (16.2)

  Rashes, eruptions and exanthems NEC

61 (4.1)

Marrow depression and hypoplastic anaemias

23 (5.8)

  Marrow depression and hypoplastic anaemias

50 (3.4)

Leukopenias NEC /

Thrombocytopenias

19 (4.8)

19 (4.8)

  Leukopenias NEC

39 (2.6)

Sepsis, bacteraemia, viraemia and fungaemia NEC

15 (3.8)

  Febrile disorders

35 (2.4)

Anaemias NEC /

Non-site specific gastrointestinal haemorrhages

12 (3.0)

12 (3.0)

Analgesia producing opioids

 Morphine

  Total reactions

705 (100.0)

Total reactions

239 (100.0)

  Cortical dysfunction NEC / Dyssomnias

33 (4.7)

33 (4.7)

Cortical dysfunction NEC

21 (8.8)

  Neurological signs and symptoms NEC

27 (3.8)

Rashes, eruptions and exanthems NEC

15 (6.3)

  Nausea and vomiting symptoms

26 (3.7)

Neurological signs and symptoms NEC

10 (4.2)

  Overdoses NEC

20 (2.8)

Deliria /

Mental disorders NEC /

Muscle tone abnormal /

Nausea and vomiting symptoms /

Overdoses NEC

8 (3.3)

8 (3.3)

8 (3.3)

8 (3.3)

8 (3.3)

  Product administration errors and issues

19 (2.7)

Coma states /

Disturbances in consciousness NEC

7 (2.9)

7 (2.9)

 Oxycodone

  Total reactions

396 (100.0)

Total reactions

207 (100.0)

  Nausea and vomiting symptoms

25 (6.3)

Cortical dysfunction NEC

11 (5.3)

  Substance related and addictive disorders

16 (4.0)

Dyssomnias

10 (4.8)

Dyssomnias /

  Gastrointestinal atonic and hypomotility disorders NEC

12 (3.0)

12 (3.0)

Neurological signs and symptoms NEC

9 (4.3)

  Cortical dysfunction NEC / Hepatobiliary function diagnostic procedures /

  Neurological signs and symptoms NEC

11 (2.8)

11 (2.8)

11 (2.8)

Anxiety symptoms /

Hallucinations (ecxl sleep-related)

7 (3.4)

7 (3.4)

  Interactions /

  Product administration errors and issues

9 (2.3)

9 (2.3)

Gastrointestinal atonic and hypomotility disorders NEC /

Nausea and vomiting symptoms /

Non-site specific injuries NEC

6 (2.9)

6 (2.9)

 Tramadol

  Total reactions

981 (100.0)

Total reactions

322 (100.0)

  Nausea and vomiting symptoms

75 (7.6)

Cortical dysfunction NEC

23 (7.1)

  Cortical dysfunction NEC /

  Neurological signs and symptoms NEC

42 (4.3)

42 (4.3)

Muscle tone abnormal

18 (5.6)

  Overdoses NEC

30 (3.1)

Neurological signs and symptoms NEC

16 (5.0)

  Muscle tone abnormal

29 (3.0)

Nausea and vomiting symptoms

13 (4.0)

  Dyssomnias

28 (2.9)

Asthenic conditions

12 (3.7)

Other analgesic drugs used in pain therapiesa

 Gabapentin

  Total reactions

338 (100.0)

Total reactions

135 (100.0)

  Neurological signs and symptoms NEC

16 (4.7)

Off label uses

12 (8.9)

  Nausea and vomiting symptoms

10 (3.0)

Dyssomnias

9 (6.7)

  Cortical dysfunction NEC /

  Rashes, eruptions and exanthems NEC

9 (2.7)

9 (2.7)

Cortical dysfunction NEC

8 (5.9)

  Anxiety symptoms /

  Asthenic conditions

8 (2.4)

8 (2.4)

Dyskinesias and movement disorders NEC / Neurological signs and symptoms NEC

7 (5.2)

7 (5.2)

  Dyssomnias /

  Headaches NEC

7 (2.1)

7 (2.1)

General signs and symptoms NEC /

Non-site specific injuries NEC

6 (4.4)

6 (4.4)

 Paracetamol

  Total reactions

2694 (100.0)

Total reactions

660 (100.0)

  Hepatocellular damage and hepatitis NEC

211 (7.8)

Hepatocellular damage and hepatitis NEC

65 (9.8)

  Poisoning and toxicity

203 (7.5)

Hepatobiliary function diagnostic procedures

36 (5.5)

  Nausea and vomiting symptoms

167 (6.2)

Rashes, eruptions and exanthems NEC

23 (3.5)

  Hepatobiliary function diagnostic procedures

153 (5.7)

Coagulation and bleeding analyses

20 (3.0)

  Overdoses NEC

81 (3.0)

Nausea and vomiting symptoms /

Renal failure and impairment

16 (2.4)

16 (2.4)

 Pregabalin

  Total reactions

1121 (100.0)

Total reactions

356 (100.0)

  Neurological signs and symptoms NEC

40 (3.6)

Cortical dysfunction NEC

14 (3.9)

  Dyssomnias

34 (3.0)

Non-site specific injuries NEC

12 (3.4)

  Therapeutic and nontherapeutic responses

28 (2.5)

Neurological signs and symptoms NEC / Rashes, eruptions and exanthems NEC

11 (3.1)

11 (3.1)

  Asthenic conditions

26 (2.3)

General signs and symptoms NEC / Therapeutic and nontherapeutic responses

10 (2.8)

10 (2.8)

  Cortical dysfunction NEC

25 (2.2)

Dyssomnias /

Gait disturbances

8 (2.2)

8 (2.2)

  1. Reactions are listed as percent of total reactions for each respective drug within each age category. Where multiple reactions had the same frequency, they are reported in the same cell and separated by “/”. Percentages reflect the proportion of all reactions for each drug within the age category with the total reactions (100%) shown under “Total reactions”. Number/percentage of ICSRs with reaction shown for each drug do not add up to total number of reactions/100% for the respective drug, as only the five most frequent reactions are shown.
  2. NEC not elsewhere classified.
  3. a Due to a low number of reports only the four most frequently reported drugs in the subgroup “other drugs used in pain therapies” were analysed.